Some "Modding" includes illegal unlocking of official content and performance hacks. These are not mods but hacks. It is sometimes hard to define the line between lame hacks and cool mods. But anything that can lead to an advantage in the game, like level boosts, money hacks or performance increasements are just lame cheats.
And i do not have GTA V, so i can only forward what i have heard and picked up from the net.
This was exactly what i was expecting from the online GTA V experience BTW. A game that promotes violence, crimes and misbehavior should not be surprised that that game behavior does not stop with the original content. I actually think it is an open invite for certain low moral behavior. Even if 90% of the gamers will not do it. Some will try to get an unfair advantage over others. And they will see that as a part of the game.
Rockstar are in their right to take action against infringements that ruin the game experience or is draining resources by unlocking paid DLC. It will be interesting to see if they can keep the game clean.
IMO some mods can be fun and for offline use it should be allowed to a certain level. Maybe even with workshop support, like other games.
But it is also good to see a publisher/developer who takes action against cheaters.
A lot of online games are destroyed by cheaters, who think they are cool, but are just lame attention seekers without skills or morals.
If these rigid methods are needed to get rid of them, thats the way to go than.
Flushing out the miscreants...oh no, that is the Tsunami mod...